I love the current plot arc, in Vegas, with the guy who makes minitures of his own crime scenes. Shame Grissom is out for the moment.

Can't wait for CSI: Miami to come back either. Caine was just pure badass in the last few episodes of that. While I'm warming to New York, and I love the science that seems to be the focus in Vegas, I think having Horatio Caine: Action Hero is actually a great contrast. Usually, when the heat is turned up, characters in CSI tend to get all flustered.

*SPOILER*

I'm finding the plot arc in NY with Mac discovering his dead wife's son a bit creepy though.